AP PHOTOS: Brazil protesters take to streets again

A riot police officer uses his front teeth to hold onto to a non-lethal grenade during an anti-government protest near the Cidade de Deus, or City of God slum, in Rio de Janeiro, Brazil, Friday, June 21, 2013. City centers around Brazil were still smoldering on Friday after 1 million protesters took to the streets amid growing calls on social media for a general strike next week. While most protesters were peaceful, some small groups clashed violently with police, who responded in some cases with tear gas, pepper spray and rubber bullets. (AP Photo/Felipe Dana)

Tens of thousands of anti-government demonstrators again took to streets in several Brazilian cities Saturday, hours after President Dilma Rousseff broke a long silence to promise reforms.

The day's protests were smaller than those early in the week, but appeared to be growing.

Police estimated about 60,000 demonstrators gathered in a central square in the city of Belo Horizonte, largely to denounce legislation that would limit the power of federal prosecutors to investigate crimes in a country where many are fed up with the high rate of robberies and killings. Many fear the law also would hinder attempts to jail corrupt politicians and other powerful figures.

Rousseff promised late Friday to be tougher on corruption and vowed to work toward improving urban transportation, education and other services.

Many said protests should continue until the government really acts.

"It was good Dilma spoke, but this movement has moved too far, there was not much she could really say," said Victoria Villela, a 21-year-old university student at a protest in Sao Paulo. "All my friends were talking on Facebook about how she said nothing that satisfied them. I think the protests are going to continue for a long time and the crowds will still be huge."